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Added 14 days ago
RB
Lead Platform Developer (AEM)
Royal Bank of Canada
Toronto, ON
- Full-time
The Lead Platform Developer will perform various tasks to deliver IT solutions that exceed customer expectations in content, usability, accuracy, reliability and performance. This person is…
Added 14 days ago
R
Lead Platform Developer (AEM)
RBC
Toronto, ON
- Full-time
The Lead Platform Developer will perform various tasks to deliver IT solutions that exceed customer expectations in content, usability, accuracy, reliability and performance. This person is…
Added 14 days ago
C
Full Stack Senior Engineer
Citi
Mississauga, ON
- Full-time
The Full Stack Senior Engineer is responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall…
Added 14 days ago
A
Software Dev Engineer II, 3P AV Measurement
Amazon
Toronto, ON
- Full-time
…multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl…
Added 14 days ago
TC
Business Systems Analysis
Tata Consultancy Services
Toronto, ON
- $90,000 to $110,000 CAD / year
- Part-time
…is enabling its clients to transform themselves across the full AI stack, from infrastructure to…
Added 14 days ago
Software Dev Engineer II, 3P AV Measurement
Amazon
Toronto, ON
…multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl…
Added 14 days ago
R
JavaScript Full Stack Developer
Rebel
Ottawa, ON
- $60,000 to $100,000 CAD / year
- Full-time
Position Title: JavaScript Full Stack Developer Intermediate
Added 14 days ago
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Senior Machine Learning Engineer
Fusemachines
Remote, Canada
- Contract
- Remote
We’re hiring a Senior Machine Learning Engineer to architect, build, and deploy high-performance machine learning systems that power technology stack. You will work across the entire ML…
Added 15 days ago
P
Engineering Manager
Plusgrade
Montreal, QC
- Full-time
Take ownership of three high-throughput engineering teams that power critical travel infrastructure, with full autonomy to elevate software practices and grow top talent.
Added 15 days ago
P
Engineering Manager
Plusgrade
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Take ownership of three high-throughput engineering teams that power critical travel infrastructure, with full autonomy to elevate software practices and grow top talent.
Added 15 days ago
C
Java Developer (React)
Collabera
Toronto, ON
- $90 to $102 CAD / hour
- Contract
The Senior Full Stack Engineer will join a Capital Markets engineering team responsible for modernizing and rebuilding a mission-critical platform used across Public Markets. This is…
Added 15 days ago
W
Senior Software Engineer (Full Stack)
Workday
Vancouver, BC · Canada, BC, Vancouver
- Full-time
As a Senior Full Stack Software Engineer in Agent Factory, you’ll help build the user-facing and platform experiences that bring Workday’s AI agents to life. Working within a small,…
Added 15 days ago
RL
Quality Assurance Automation Engineer
RedCompass Labs
Toronto, ON
- Full-time
Build and maintain automated tests across the full stack – UI, API, middleware and message layers – covering component, integration and end-to-end transaction flows
Added 15 days ago
AC
Full Stack Engineer
ALTEN Canada
ON · Ontario, Canada
- Other
…Defense. Automotive, Rail and Transportation to Information Systems and Telecommunications, our unwavering commitment to excellence shaping the future of technology and…
Added 15 days ago
M
Spécialiste en développement logiciel, IA et modernisation/Software Development Specialist, AI & Modernization
McKesson
Montreal, QC
- Full-time
Java, C#, Python ou autres langages de programmation modernes
Added 15 days ago
UR
Forward Deployed Engineer (FDE) (Mid/Senior Level)
Urban Ridge Supplies
Toronto, ON
- Full-time
…business impact. This work spans configuration, customization, and full-stack deployment - shipping solutions customers depend…
Added 15 days ago
UR
Forward Deployed Engineer (FDE) (Mid/Senior Level)
Urban Ridge Supplies
Toronto, ON
- Full-time
…business impact. This work spans configuration, customization, and full-stack deployment - shipping solutions customers depend…
Added 15 days ago
UR
Software Engineer - Team Lead (Forward Deployed)
Urban Ridge Supplies
Mississauga, ON
- Full-time
…drive value. While you may have natural specialties, we expect full-stack capability accelerated by AI - no dedicated frontend, backend, or DevOps…
Added 15 days ago
UR
Principal Quality Architect
Urban Ridge Supplies
Toronto, ON
- Full-time
…production features. The role blends test engineering with full-stack development: you'll help build the systems and the safeguards that prove they work. You'll apply agentic development…
Added 15 days ago
BC
Associate or Vice President Full Stack Engineer
BMO Capital Markets
Toronto, ON
- Part-time
We are seeking an exceptional Full Stack Engineer to join our Data Cognition Team at BMO Capital Markets. In this pivotal role, you will architect, develop, and implement innovative…
Added 15 days ago
Software Development Engineer, Senior Leader Experiences - Workforce Planning
Amazon
Vancouver, BC
- Proficiency in Java or any other object oriented programming is required, and the ideal candidate is an expert in at least one of these languages.
Added 15 days ago
V
Application Engineer - III
Vanguard
Toronto, ON
- Full-time
Modern full-stack development. Experience building applications using Angular (or similar front-end frameworks), Java/Spring Boot (or equivalent backend technologies), REST APIs, and SQL…
Added 16 days ago
TC
Full-Stack Java Developer (with DB & Cloud)
TMC Canada
Montreal, QC
- Full-time
…designed for cloud-native deployments. The standard technology stack includes PostgreSQL or MongoDB for data storage, Java (Spring Boot) for the middle tier, and Angular, React, or Ext JS…
Added 16 days ago
GV
Software Engineer
Great Value Hiring
Canada
- Contract
Writing realistic engineering tasks on full-stack web apps: the kind of problem a real team has in its backlog, on codebases that grow as each task builds on the last
Added 16 days ago
S
Full Stack Engineer
Synechron
Toronto, ON
- Full-time
Our challenge for Full Stack Developer, you will tackle complex challenges across both front-end and back-end development. You will design scalable applications, integrate APIs, optimize…

Collabera

Java Developer (React)

Toronto, ON, Canada

$90 to $102 CAD / hour · Contract

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Job details

Pay: $90 to $102 CAD / hour
Job type: Contract
Apply by: Oct 24, 2026
Experience: 10+ years of enterprise Java development experience. (80%)
Posting language: English
Posted: Sep 24, 2026

Original job description

Title: Senior Java Engineer

Client: Investment Industry

Type: 6-month contract + opportunity to extend

Location: Downtown Toronto, ON - Hybrid (4 day/week on-site)

PR: $90-100/hr (as per experience)

Why Is This Role Open?

Client is executing a large-scale transformation to refactor a legacy monolithic application into a microservices-based architecture.

The Senior Full Stack Engineer will join a Capital Markets engineering team responsible for modernizing and rebuilding a mission-critical platform used across Public Markets. This is primarily a backend-focused role (approximately 80% backend / 20% frontend), requiring deep expertise in Java development while also contributing to React-based UI enhancements.

The successful candidate will play a key role in decomposing a legacy monolithic application into cloud-native microservices while supporting ongoing user interface enhancements for portfolio management users.

Day-to-Day Responsibilities

Refactor and decompose a large monolithic application into microservices.
Design, develop, and maintain backend services using Java and Spring Boot.
Contribute to architecture discussions, service boundaries, and technical design decisions.
Develop and deploy cloud-native applications in AWS.
Build and enhance React-based UI components
Collaborate with developers, business analysts, and Capital Markets stakeholders
Ensure systems are highly performant, secure, resilient, and scalable.
Participate in code reviews and engineering best practices.

Must-Have Skills

Backend Development

10+ years of enterprise Java development experience. (80%)
Advanced Spring Boot expertise.
Proven experience building and refactoring microservices architectures.
Experience designing and developing distributed, high-performance systems.

Frontend Development

Hands-on React development experience. (20%)
Comfortable contributing to frontend features and UI enhancements

Cloud & DevOps

Cloud- AWS experience (preferred)

Capital Markets Experience (if they don't have capital markets, should at least come from financial services/ retail banking).

Public Markets experience.
FX experience.
Equities experience.
Derivatives experience.
Understanding of front-office trading workflows.

Soft Skills

Strong analytical and problem-solving abilities.
Ability to work independently in a fast-paced engineering environment.
Strong communication and collaboration skills.

Nice-to-Haves

Experience with portfolio management or trading platforms.
AWS cloud-native services experience.
Mockito and automated testing frameworks.
Exposure to AI/ML concepts.
Experience working in highly regulated financial environments.

We may use AI-enabled and/or automated tools to support parts of our recruitment process, including application screening, interview scheduling, and candidate communications. These tools are used to enhance consistency and efficiency. All hiring decisions involve human review and are not based solely on automated processing.

The Company offers a total rewards package in accordance with all applicable federal, provincial, and local laws and requirements. Benefit eligibility and offerings vary based on role, employment status, and work location. For contractor positions, benefits are limited to those entitlements and protections required by applicable law, which may include (as applicable) vacation pay, public holidays, leaves of absence, and other legally mandated benefits or payments.

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More about this job

Responsibilities

Refactor a legacy monolithic application into cloud-native microservices, designing and maintaining high-performance Java and Spring Boot backend services deployed on AWS. Contribute to React UI enhancements, architecture decisions, code reviews, and collaboration with engineering and Capital Markets stakeholders to ensure secure, resilient, and scalable systems.

Requirements

Requires 10 or more years of enterprise Java development experience, advanced Spring Boot expertise, and proven experience building microservices and distributed systems. Candidates should also have hands-on React experience and relevant financial services experience, ideally including Public Markets, FX, equities, derivatives, or front-office trading workflows.

Skills

Java
Spring Boot
Microservices
Distributed Systems
React
AWS
Cloud-Native Development
System Architecture
Capital Markets
Public Markets
Foreign Exchange
Equities
Derivatives
Front-Office Trading Workflows
Mockito
Automated Testing

Benefits

Vacation Pay
Public Holidays
Leaves Of Absence
Other Legally Mandated Benefits Or Payments

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
Microservices
Monolithic Application Refactoring
Distributed Systems
High-Performance Systems
React
AWS
Cloud-Native Applications
Capital Markets
Public Markets
Portfolio Management
Foreign Exchange
Equities
Derivatives
Front-Office Trading Workflows
Mockito
Automated Testing
Architecture Design
Service Boundaries
Code Reviews
Financial Services
Retail Banking
Regulated Financial Environments
AI/ML

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